Keck Week Video #13: Between the Galaxies: The Intergalactic Medium – Dr. Xavier Prochaska

Xavier Prochaska, from UC Santa Cruz, explains how his team employs the "science of silhouette" to discover and characterize the intergalactic medium and the large-scale structure of the cosmos.

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Here on Keck 2 the 1st of our 2 primary fields has just risen above the horizon, so we are busily collecting photons from distant galaxies.
Howdy! This is @rhaegal on Keck 2 with grad student Intae, searching for the most distant galaxies with deep spectroscopy on DEIMOS.
Tonight's schedule is LRIS-ADC on Keck 1 and DEIMOS on Keck 2 for our lucky observers from UCLA and NASA. Sun set 06:04:00pm rise 06:09:00am
Griffith Observatory TV on Livestream. bit.ly/1tJbDNx
Wed., Oct. 22,  2014,10:00 pm bit.ly/1tJ5mkP Keck Observatory demonstrates "the pinnacle of the extension of human vision"